Plastic glide layer and sliding element with such

Abstract

A sliding layer and a sliding element with such a sliding layer includes a fiber reinforced plastic with a plastic matrix and a plastic thread as a reinforcing element. The plastic thread has polyester filaments into which are worked PTFE particles by process engineering.

Description

RELATED APPLICATIONS[0001]This application claims priority to German Patent Application 10 2006 043 065.4-43, filed Sep. 14, 2006.BACKGROUND OF THE INVENTION[0002]1. Technical Field[0003]The invention relates to a sliding bearing based on fiber-reinforced plastic with a plastic matrix and a plastic thread as reinforcing element. It also relates to a sliding element with such a sliding layer.[0004]2. Related Art[0005]The use of composite fiber materials for sliding bearings, in particular wound plastic sliding bearings based on epoxy resins, is of prior art. Such sliding bearings consist of a single-layer sliding layer material or a bearing material constructed from two layers, a support layer and a sliding layer. The sliding layer may be located on the inside relative to the support layer, according to the application. The support layer is typically characterised by a glass fiber or carbon fiber reinforced epoxy resin matrix which has a very high load absorption capacity. The slidin...

AI Technical Summary

Benefits of technology

The invention is a sliding layer or sliding element made from a fiber reinforced plastic with easy production, easy re-machining and high wear resistance. The sliding layer contains PTFE particles that improve sliding properties and are evenly distributed throughout the material. The use of a plastic matrix with PTFE particles increases the adhesive bond and mechanical retention, thus improving the mechanical performance of the sliding layer. The sliding layer can be deposited on a winding mandrel to increase production efficiency. The sliding layer is particularly suitable for precision sliding bearings that have to be re-machined.

Problems solved by technology

Although the use of PTFE as a solid lubricant has proved satisfactory in fiber reinforced plastic sliding layers due to its good sliding friction properties, tribological and mechanical properties not yet satisfactory for all applications have been achieved.

Consequently the sliding layers of prior art could not be re-machined mechanically without difficulty, or not at all.

In most cases the result was delamination of the sliding layer and deterioration in the tribological properties and in the wear resistance of the siding layer.

Images